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TO FROM SUBJECT: OPTIONAL FORM NO, to MAY {962 EDITION GSA FeMR (41 CFR) 105-11.6 UNITED STATES GOVERNMENT Memorandum | | SAC, SEATTLE (164-81) DATE: 12/3/71 | ASAC PAUL R. BIBLER | Aide & hear UNSUB, aka Dan Cooper; NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION OO: SE sat eatied from Phi ladelphig — He 1s the Agent who has been interviewing has a theory based on the fact that told him subject appeared to be quite intelligent not appear to be dressed for jumping. Theory is b6 that subject did not leave the plane until after it landed b7C in Reno. got someone to take him through a 727 and there are two inspection panels in the extreme rear lane, which are not readily detectable. In fact, did not even know about these areas. The one on the right of the stairway door in the rear of the plane, is untenable for very long because it is full of heat ducts and other materials. The one on the left has room for a man to stand along with the gear which subject had with him the other night. He would not freeze at below level, nor would he need oxygen at that level. Lei putting this in a teletype, however, I telephoned ASAC DULINSKY in Las Vegas and asked him to determine if FBI personnel or airline personnel in their processing, inspected this compartment in Reno on 11/24/71. Te Minneapolis where I talked to the duty agent ] ana asked him to have Minneapolis determine if airline personnel had been in this compartment in instant plane since it had been returned to duty and whether it showed any signs of occupancy. I told him that if they could not see if that panel had been opened, to determine where the plane is now so that it can be inspected. ee, rf, (ie a ee PRB:klb SEARCHED. INDEX| : (3) SERIAL LED pec wn 4 FBI—-SEATTLE Buy U.S, Savings Bonds Regularly on the Payroll Savi ’ DB Cooper-2942